Locomotive-stopping apparatus.



J. W. BARNES, JR.

LOGOMOTIVE STOPPING APPARATUS.

APPLIGLTION FILED MAR-20, 1913.

Patented Jan. 12, 1915.

3 SHEETS-SHEET 2.

J. TQPOQJP JUSTUS W. BARNES, JR.,1 OF BECKET, MASSACHUSETTS.

LOCOMOTIVE-STOPPING APPARATUS.

Specication of Letters Patent.

Patented Jan.V 1 2,1915.

lApplication filed March 20, 1913. Serial No. 755,679.

To all 7071 om it m ny/ fon r-ern Be it known that l', JUs'rUs W.BARNES, Jr., a citizen of the United States, residing at Becket, inthe'county ot Berkshire and State of Massachusetts. have inventedcertain new land useful Improvements in Locomotive- Stopping' Apparatus;and I do hereby declare the following to be a full, clear, and exactdescription of the invent-ion, such as will enable others skilled in theart to which it appert-ains to make and use the same.

This invention relates to locomotive stopping apparatus, and it moreparticularl;7 relates to a combination of electric conductors andconnections with mechanical structure, wherebv a train of cars or alocomotive maybe automatically and instantaneously stopped. rl'he primeobject ot the invention is to prevent rear end collisions.

Another object ot' the invention is to dividev a railroad into sectionsor blocks which are electricallyy insulated from each other, and toprovide'each block with an electrilcally operated mechanism. and toprovide each locomotive with valve-actuating and brake-actuatingmechanism, Jfor instantly applying the air-brakes of the engine andtrain. and simultaneously closing the throt tle of the locomotive.

A further object of the invention is to equip a railroad 'with apparatusof this cha racter whereby7 the electricall7 operated mechanism, orelectro-mechanical actuator. of one insulated section of railroad isactuated b v a train in an adjacent section in advance. which closes thecircuit in the advance section, so as to set in operation theelectrocharacter which may be operated by hand,-

in case of emergency, so as to prevent a train from running into awash-out. landslide, wreck, etc- Another object of the invention is toprovide apparatus of this character which mav be used in connection withthe ordinal-v or any preferred s vsem of signaling. telephoin ing, ortelegraphing. etc.. so as to eliminarl unnecessarv 'expense ot'installation. and. another object of the invention is to provideapparatus of thisrharacter which is compact, simple and economical ot'construction and maintenance. positive and thoroughlv reliable inoperation. and withal tlmrmfighlv efficient. i l

Other objects and advantages mav be recited hereinafter and in theclaims. i

ln the accompanving drawings. which supplement this specification.Figure l isa somewhat diagrammatical plan view illustrating severalVadjacent sectionsof railroad having my improved locomotive stoppingapparatus applied thereto. Fig. 2 is a tragmental' de-v tail view. inelevation, of an arrester or cutoff valve and its operating mechanism.Fig. 3 is a plan view illustrating a fragment ot a railroad having myimproved locomotive arrester applied in operative positioznaml afragmental portion of the train and its brake-actuating and'tln'ottle-actuating mechanism in its operative position with relationto the cam-rail. This tigurefalso shows the electro-mechanical operatingmechanism, the housing therefor being shown in horizontal section on theline 3 3 of Fig. l. Fig. lis a vertical section through the housing,taken on the line '-l-l of Fig.v .D

o. Fig. 5 is an enlarged vertical sectional view through the combinedbell-cra l: and hand-lever illustrated in F ig. 3. (i is an enlargedvertical sectional view illustrating the cut-oil' valve and itsconnectien with the compressed air ovlinder and pistoir lar referencecharacters correspond to the several parts throughout the severalVviews,

- the railroad track1 is divided into sections A,

B, C, D, etc., and these sections may be of any desired length, butpreferably severalmiles` and not inthe proportion illustrated, in whichthe length of the sections is greatly diminished, for Awant of space andfor the purpose of comprehensive illustration. These sections areinsulated from each other at 10, so that each of the rail-sections 1land 12 constitutes an electriclconductor throughout its length. Eachsection`is provided with an operating station which consists of anelectro-mechanical actuator within the casing 13,- a, cam-bar 14 and itsconnecting element 15.

r1`he cam-bar l14 is pivotedat 16 to a stationary block or bench 17,adjacent to the rail section 11, on the right hand side of the rail-Aroad; it being understood that all of the trains travel from right toleft, in Figs. l and 3, asin all double track railways, only one track,however, being illustrated in the present, disclosure. The camrail 14may be of any desired shape but is preferably in theshap of an invertedT,'in cross section, for the purpose of rigidity and thorougheiiciency,gand upon the horizontal flanges 14 is locatedl the-upstanding flange 14a against which the roller 16 rolls-as the loco- .imotive. passes along the track. This roller stantially at right anglesto the arm 17.

16 is journaled on an arm 17, mounted on the vertical shaft 18, attheupperend of which is mounted an arm '19, disposed sub link 20- ispivotally connected to the arm 19, by means of a crank-pin 21, one endof the link 20 being Aprovided with a vlaterally eX- tending stud whichis slidably connected with va transmission lever 23; said lever having ahorizontal slot 24' through which *the stud '22 extends.- The lever :23is pivotally mounted at 25 on a suitable bracket 26, secured-on avbeam-27. lThis beam is only illustrated as a means for supporting thecut-of'valve and its operating mechanism, but it should be understoodthat I may mount these mechanisms in any suitable way, either upon thelocomotive or upon the tender,

To the lower end of the lever 1s pivotally connected aconnecting rod orlink Q8,

be seen that thevdistance which the lower vend of the lever travels isapproximately twice the distance which the medial or slotted portiontravels, and hence, the distance which the rod Q8 is pulled b v the link20 is 7 approximatel twice the distance which said link travels. Now,when thecorner or point 32 has passed over theapex 33 of the detent 31,the spring action and wedge action of said detent forces the element 29to move 7 rapidly forward until the detent rests in the other notcli30.During the foregoing m ,vement, the stud 22 lslides in the slot 24,`from the front to the rear thereof; but as soon` as the roller 16 hasmoved out of engagement 8 with the rail 14, the shaft 18.` and armsv 17and 19. are returned to their normal posi, tions. by means ofa"retractile spring 34. The forwa rd swing of the shifter-arm 29 rotatesthe axle or trunnion 35, and this axle 8 may be integrally formedfwithor litted tu the rotary. disk or cut-off valve' member 36. This 'valvemember constitutes an essential element of the cut-oil' valve, of whichthe" casing 37 constitutes the other essential ele- 9 ment. This casingis provided with bean ings in which the axle 35 is rotatably mounted,while the disk 36 is snugly fitted between the parallel walls ofthecasing and adapted to be rotated therein', by means of the arm 29 9 andshaft The disk 36p`is provided with ports' 39 and 40, .the firsttwo ofwhich extends entirely thrt" i the disk, thelast .one extending onlypart through tlie disk and through the periphery thereof. The l casing37 is provided with pipe connections 3S', 39', 4l and 42,'being alsoprovided with a release opening or outlet 43.v T he casing is alsoprovided with aperturedlanges 44, through which bolts or othersuitablemeans 1 may be extended forsecuring the'separable sections of thecasingtogether.

One of the casing sections is provided with an apertured flange 45, bymeans of which it may be secured to the element 27, 1v

or to anyA other desired element, as described. The air-pipe 46, whichis adapted Vto con,- nect with a pump (not shown) and with theair-brakes (not shown), is intersected bv the valve casing 37, havingitsadjacent ends 1 secured lto the internally screwgthreaded bosses or pipeconnections 41 and 42', ^o that communication is normally established.throughthe aperture or port. 3S. A pipev 47 isiada'pted to communicatewith reser\ 1:

voir (not shown)into which air Js-compressed through the pipe 46. Thepipe\47 is also intersected by the valve casing 37, and is adapted .tolcommunicate with the aperture or port 39 when the disk is aetuat'ed, as.11

previously described. so as, to establish communication of the adjacentends of the'pipev 47, through said port 39, and allow the coml malaises:"pmed air to pass through the pipe 47 into the throttle-actuating-cylinder 48. This cylinder is of special construction, being providedwith a port 49 whichextends approxi'inately throughout its length andcornmunicates with' the interior of the cylinder A at its forward end;The rear end of the cylinder is provided with a' cylindrical lbearingand air-chamber combined, indicated at 50, and in this chamber 50 isseated a trunnion lwhich is provided with a peripherai groove or port52. A port 53 cour municates with the port 52 While the latter I.communica-tes with the port 49, and the coni- `port 39, pipe 47 andports 53, 52 and 49,

' and into the cylinder 48, the piston 54 is actuated and forced backWithin the cylinder,

vso

while the air escapes through the vent 55.

A whistle 5 6 may' be provided on the cylinder 48, so as to notify theengineer and conductor that the en ine is beine sto ed `by thislocomotive stopping apparatus, and

not by Wreck or accident. The trunnion 51. is provided with an aperturedfi-ange or base 57 through which bolts or other fastening lmeans '58 maybe inserted for securing it i' lto' any suitable support (not shown)Within pivotally mounted at 60, connected to the lo 'n .handle 64 bymeans of 'the link 65.

the engineers cab. v l

.The throttle-actuating lever 59, may be of any' :preferred or usualconstruction, being throttle (not shown) by means of a link 6l. Theusual toothed segment 62 is einployed for adjustment of the lever 59, asliding detent 63 being connected to tti. spring 66 co-acts With thehandle and link for holding the detent in engagement with Y the teeth ofthe segment 62,. l The detent 63 is-provided with a stud or roller 67against which a Wedgeeleinent 68 is adapted to be moved,`for disengagingthe detent 63 from Athe` teeth of the segment.

The Wedge 68 is backed and supported by a keeper element 69 which isfixedly secured on the lever 59. The keeper elernent is partly removedin Fi 7 for the sake of clearness, but the tivo secioned portionsthereof are adapted to be connected by a bridge'eleinentlnot shown),Whih may extend over the elements 63, 67

and 63, so as to hold the latter element in; ion With the roller 67.L

proper Working re' i A. spring 70 is seemed. on the lever59, and bearsagainst a stud 7l, which extends down from the Wedge element 68. TheWedge element 68 isconnected with the piston 54 by means of the pistonrod 72', so that when the lpiston is actuatedas described, the Wedge 68,is drawn between the roller 67 and one of the sectioned elements.69,.'so as to push the detent 63 out of engagement with the teeth oflthe segment. The sliding Inovement of the element 63 is arrested by theother sectioned element 69, so that the piston rod 72 now exerts apositive and forceful pull on the lever 59, so as to inove the link 6llongitudinally and thereby close the throttle of. the engine.

lt willy be seen that the foregoing operation is effected by therotationof the disk 36, and the consequent establishment of an air currentthrough the pipe 47 and the 'several/s intercomniunicating ports. Now,it will also be seen that the -sarne movement of the disk 36 which opensthe port 39closes the.

port 38 and opens the port 40;Y or, in other Words, the communication ofthe air-pump and air-brakes cut olf While the air mayv escape from saidair-brakes through theV port 40, so that said air-brakes are quickly andgradually operated; the .escape of air not being so rapid as to draw thebrakes in stuantly,y which would result in frightening and probablyinjuring sonic of the passengers. v n

The cani-rail 14 is normally out of opera tive position, its rectilinearportion being substantially parallel with .the railroad track, 'asVshown at the left of Fig. l, so that thev roller 16 does not come intocontact therewith; but "when a train starts to-enter one of the tracksections before another train, in advance thereof, has passed out of thepreceding section, previously de,- scribed operation will result, thecam-rail 14 having been swung into the position shown in Fig. 8 by theelectroniechanical actuator, which is described in detail as follows:Nithin the casing 13 `is mounted a rotatable shaft 72 and a secondrotatable shaft 73, these shafts being axially alined. The shaft 72carries spur gear 75and 'a disk 76 which are rotatable With the shaft 72and with anV electro-magnet 77 by which the disk is'to be magnetized.The shaft 78 carries a disk 78 'and a sheave Wheel'f). rhe disks 76 and78, together with the magnet 7 7, constitute a magnetic friction clutch,the adjacent -faces' of said disks being smooth and in contact With eachother, and adapted to rotate alternately with each other andindependently of each other. The

tion. is piyotallyconiie'cted withthe' link' whilejthis louer sectionandthemiddle section 88' are' pivotally in'ountedupon the saine supportSQ'and upon' thesame vpivot 90.

The uppei'igsection 9 1 is hinged to the middle' Isection 'at 92, and isadaptedto bes'wung .joutujard, as in'liig. 5, alndinwa'rd,'as in F 3.,"ll'heninjthis latter. position, thelower i and middle sections' are heldinf parallel" relation by meansof'a-stud which entends throu, r hregistering apertures, indicated' at 94,'while the staple* 95 'extendsfthrough an aperture 96,'an'd apadlock 97 is engaged' With the staple.sothat these'11pper,-lower and middlef elements are locliedjsecurelyltogether, inail-obtiens manner. l -YVh'en in open position, asillustrated in Fig. rthep handle' 98 may he grasped'for ysn'in'ging themiddle .and upperse'ctio'ns .of the Ibelllcranlr' instantly. -o'n tl 1e"lo\yer' sec- `tion,'so 'that'v the cam-rail, which is. 'conh ,necte'd'to the middle'section by 'means-'oa 'link QQQf may be swung' into vor'out v of open' atiyep'ositi'on, Without a-ifecting lthe' mecha-in; isin-Within the casinjg'lt'4 The' bell-crankis` also providedWitl1- anfarm100which is connected to a' signal 101 through anni; 102..'.This'signaliis' so connected. as ,tofbe insigo "nailingpositionwhen-thecarnfrail -is in its o'peratiye`position, -so that' theengineernmy begin to stop the-engine before it is y'stopped by 'thevstopping apparatus, providing' he "see'sthe signalg-'but invcasej'ot'-ne,f ligerice, or

obstruction, "such asfv fog, Vor'-"sno'w, the

stopping'apparatus will e'e'ctuallystopzthe1311,111,132and106,Whileno'currentislowf l ing'through ,the :motor103,;'nor 'through A thel train, in the(mannerfdescribed,

Hthe-casi1-1g 13 Vincludes afmotor-indi'cated at lWhile the otherirai-lief the forward section l'is ,electrically connected with. thepositive conductor LorlineiWire 101. The negative or return line Wire1051s connected with the `motor through aconductor W1re106,a

relativelylong' conductorwire '107 being einplo-Vcd' for -connecting lwith one of. said .for-v `ward'sect-ions, while a relatively short`conductor 108 connects'said'positive Wire with ltheaopposite railof saidforwardsection. NO W, assuming that a locomotivehas ]ust passed fro'inthe section C- into s ectionD,y and thatjthe'ci'rcuit between 'the rails11i, -and -12v is c losedby the axle 109 and Wheels.- 110; 'it 11u-'llbe seen' that the'v circuit will- Dass; ill'lhedirection of the arrows'.from? 'the con'ixctor '101 through the'conductor 108,'rail section 12,'n'heels 100," axle 109,. 'rail`1 1 conductor 107 and conductor 106,4

incansfor the"l latter.A

Yong, order that thecam-,rail 11'ma'yf be' .tl1rown into voperatiieposition'by niea'nsfvv 'of-.a train in vthe .forward'for advance'.raill. road section orfblock, themec-hanis1i1-Within theplunger-,rod1); la-nd'jitsA,: 'j,unct s are `held outward by means oi study-116, asadescribed :said stud 'being hel'dfin engagementwith:the

tothe negative line vWirel105. -l-lowever, `in

completing this circuit the lcurrent must also' 'pass through the motor103, oralte'rnately through the coilI or solenoid 111' `tsee'l*`igs'.

has one end secured'to 'the sheave Wheel. '79, its other end ybeing, se#curedfto'axweight 113, whereby the disk 78,.

connecting rodfSl nand plunger-.rod- 15 are neld-v 1111, 'their normalposition; for vholding the ycam-rail' and its ad] uncts `in theirinoperand comprises. a. combination electric. switch and. mechanicaldetent, one.- arm ot'v said l lever.being provided-111th a studlljwhich. Vengages vWithla notched lug 117, secured on the,plunger-rod'lj 4The' plunger-rod also lcarries'ra lguide-arm118, 'whichis spaced' -apart troni the element 15 and' from the 110" andconstitutes la the position shown in Fig. 3,'the yshort,

'armcfthe lever-114 isdn-contact with a. binding post or contact 121,10which one of theterminals'll of the solenoid V111 is connected, theotherv solenoid .terminal beingy electrically'connected to theconductorv Wire 106, vWhile the 'conductor- Wire 10,71 is :electricallyconnected to the "piyot V115,` ofi the llever;1114i; fand therefore, so.flongfas' vthe fvwheels 1101, remainlon the '-s'ectionf'l D y(see 1F1g.1 ,fthe circuit is' established through- `the Conduct-,ingelements-107,115, 1-11,''121g,

'lugll' 'by nieansfof'the solenoid llland rod to Slide -aXially throughthe coil-111," said lor plunger 112; saidplungerbeing"movablyilVconnected tothe leverlllrand beingl adapted i110 'againstthe actionofthe spring 122,111 enfv 'gageinent .with 'theglug 117. HoweveQfas"soon as theV Wheels 110 leave section l`),the electric lconnectionbetween' the rails'ot that' sectionis bro k en,'so'that ,thecurrentvceases t0 flow through the conductors 10'( and108". opposite tovsection Cgand through .the` con- .nectionsjand yconductors Within Y thecasing 13 of said' section C, and non-.,the solenoid'.

beconiesainoperativ'e,'so that the spring 122 -noW disengages the stud11G and lug l117,soff.

that' the' Aweight 113 :rotatesthe'-1'vheel yT9 y"and dislfTS, AandVcoacts Withth-e' element 15 vand itsadjuncts forslidingfthe camrail onits rests 17", into its 'inoperativeposition,I lWhile lenses the piston82 and cylinder S3 constitute an air cushion :for prei'enting the Weight113 from too suddenly returning said element "or plunger rod ,l

-ifi-hen the neit train enters the section D, the ircuit will becompleted through the 'Wheels and axles thereof, so that an electric andconductor Wires mtos/and through the inc-tor 1C@ so as to actua, l themotor, and thereby rotate the shafacr .axlj A Worm 127 is carried hysaid axle, and meshes with a 1,torin-Wl'ieel 7%, so as to rotate thelatter and thereby rotate the shaft i128 on which it is seated. pinion129 is also iixed on the shaft 12S and meshes with the spur gear 75. Asthe disk 2s is nowl in frictional contact with the disk 78 the latter isthere'cv caused to rotate with the disl '.76, so as to torce the plungerelement l outiWard, simultaneousljyv raising the Weight ll untill thelatter has been arrested the stop-lug` 130. ll'lhile in this position,the current passes through the solenoid lll and the conductors ll and132 which are connected therewith, so as to retainthe several elementsin the position shown in lig. B,

Irails insulated 'from each other, a normally open electric circuitincluding the rails of each section, a member moi'ahly seated ad jacentvthe track, electro-mechanical means for moving lsaid member intooperative position, electro-magnetic means in said circuit for lockingsaid member in operative position, mechanical means for returning saidymember to inoperative'position, and electro-magnetic means in saidcircuit for connecting said electro-mechanical means with saidmechanicalrmeans.

'2. In combination, a railroad track diifided into insulated sectionsand having its rails insulated from each other, a normally each section,a me chanica sition,

stopping .alinement `open electric 'circuit inclnding the jacent therails t operati*l said circa operative po returning s;

circuit s: said vtive haring s' Wardlj;r

inici as the lon means i r ative posit separable 'i insulate track -i olelect nally yof actuator meniher 'e lectromowed l or .s it is c-. rh-ineinhen said 'e-lecto-mechaiiical actuator consistinf" rod Which withsaidL m a inagi'iet for uic ing the said disks, a motmagear connectedwith the motor and con nel therewith for rotating the second said dist:and therel'ij.T rotating the first saro dish, a lever for engagementwith said plunger-rod and holding Mt in extended position,

spring t'or bnecting disengagement of the lever 1with the plunger-rod.a'coil and plunger for opposing the action of the spring 13s andretaining the engagement of the lever with the plunger-rod; means theplunger-rod for moving said lever the action of .said spring, said-leverheizg of conducting material and constituting switch element wherein7the circuit throi said coil is broken `While the circuit throi A. saidmotor is closed, said lever heing trically connected with one of saidtrack rails, andvsaid motor being elcctricallyI con lnected with one of-Said electric conductors,

. In testimony -WhereofIfhnvesigned my" name to this specicatlon mthepresence of gtw'o subscribing-'Witnesses. f .l l

I Y JUSTUS W.'BARNES,'JR.'

Wtne'ss'e: j WILLIAM J. CROSS,

ALFRED JQC-'RQsHiN'n

